Fire door and wall.



A. D. CAYWOOD.

FIRE DOOR AND WALL.

APPLIOATION FILED DEo.11,1sos.

Patented Apr. 20,1909.

Z SHEETS-SHEET 1..

...edgelates of' the door with the structure of proof construction adapted for doors and broken sectional view showing a modified .series of' intermediate clips A2 connecting the ALBERT D. .CAYWOOD, OF CHICAGO, ILLINOIS.

FIRE DOOR AND WALL.

Specification of Letters Patent.

Patented April 20, 1909.

Application led December 11, 1908. Serial No. 466,957.

To all whom it may concern.'

Be it known that l, ALBERT D. CAYWOOD, a citizen of the United States, residing at Chicago, in the county of'Cook and State of Illinois, have invented a new and useful lmprovement in Fire Doors and Walls, of 'which the following is a s ecification.

My invention re ates particularly to a firewalls and my primary object is to provide a construction of the character indicated which can be manufactured at a moderate cost, which has excellent heat-resisting qualities, and which is strong and durable and of sightly appearance.

The accompanying drawings illustrate the invention embodied in a lire door, but it will be understood that the invention is adapted to wall and ceiling construction.

In the accompanying drawings-Figure 1 represents a perspective viennof' a'fire door constructed in accordance with my invention Fig. 2, a broken pers ective view of the same on a larger scale an showing marginal connecting -members employed for connecting the edge plates of the door with the structure of the door-body Fig. 3, a broken transverse sectional view taken as indicated at line 3 of Fig. 4 Fig. 4, a broken sectional view taken as indicated at line 4 of' Fig. 3 Fig, 5, a broken perspective view showing the preferred manner of connecting the flanged metallic plates employed in the construction at points removed from the edges of the door,

ig. 6, a perspective view of the connecting member shown in Figs. 3, 4 and 5; Fig.-7, a perspective view of' an edge-plate connectingmember employed; Fig. 8, a perspective view of a corner connecting-member employed; Fig. 9, a broken perspective view showing a modified means for'connecting the the oor-body; Fig. 10, a broken per'spech tive view showing the p structure 'without edge-platesand with the air-spaces filled with a heat-resisting or refractory material, such as fire-clay or cement; and Figfll, a

form of flanged late and connecting cli yReferring to Figs. l to 8 inclusive, the oor illustrated comprises a series of parallel flanged metallic plates A extending vertically; a series of flanged metallic plates AI extending transversely, or horizontally; a

flanges of the plates A and A1; a series of each other.

bered.

edge connecting members A3 (one shown); corner-connecting members A, and peripheral channel-bars A5 and edge-hars A connected with the members A3 and A, by means of screws A7. Each ol' the flanged plates A comprises a sheet metal plate having at its lateral portions oblique flanges 1 and 2 which extend at an acute angle to the body of lthe plate and carry, respectively, out-turned flanges 3 and 4. The flanges 1 and 3 are preferably somewhat larger than the flanges 2 and 4, so that the flanges may interlock in the manner shown in Figs. 3 and 5, while the bodies of the plates lie flush with The plates A1 are provided with similar flanges, which are similarly num- The flanges 1 and 3 considered together may be regarded as a l-shaped flange having an out-turned member and the flanges 2 and 4 considered together may be regarded as a il-shaped flange having an ont-turned member, the out-turned members overlapping when the plates are ranged edge to edge, as will be readily understood from Fig. 5. When so ranged, the adjacent flanges of two adjacent plates afford a dovetail projection. Each clip or connecting member A2 has a pair of flanges 5 and 6 which converge so as to form between them a dove-tail groovel adapted to receive the dove-tail projections of the plates A and at substantially right-angles thereto, a pair of' flanges 7 and 8 which converge to form a dove-tail groove adapted to receive the dovetail projections of lthe cross-plates. Thus, it willbe understood that the members A2 may be slipped on to the flanges of the plates A to connect them, after which the flanges of the lates Al may be slipped through the free anges of the members A2. Thus, the bod1es of the plates A will be separated from .the bodies of the plates A1 by spaces 9, which may serve either as air-spaces or as spaces for receiving refractoryimaterial according to the illustration given in Fig. 10. The clips or guide-members A2 may be employed at alternate intersections of the flanges of the plates, as will be understood from Fig. 4. Each connectin member Aa preferably coinprises a pair o guide-members 10 and 11 carried by a shank 12 which extends toward the edge of the door and is e uipped with a perforateinternally-threaded ug 13 ada ted to receive the corresponding screw A7. ach ofthe guide-members 10 and 11 is provided with a vertical channel adapted to receive the flanges of the vertical lates A, and with a cross-channel adapte to receive the langes of the cross-plates A1. The Web of the channel-bar A5 and the edge-plate A are provided with perforations 14 through which the screws A7 eXtend. Each corner-connecting member A4 preferably comprises a guide-member 15 and a shank 16 .having arms 17 and 18 equipped with perforate threaded lugs 19 adapted to receive the screws A7 located at the corners of the door. The guide-members 15 are equipped with a vertical channel adapted to receive the ilanges of the vertical plates A and with a cross-channel adapted to receive the langes of the marginalcross-plates A1. j

It will be understood from the foregoing that the guide-members or slides which serve to connect the llanges of the plates and also to attach the edge-members of the door are c onined between the vertical plates and cross-plates, so that the exposed surfaces of l the door are ractically smooth and present -no objectiona le projections. The connecting members are thus securelyr housed and protected from injury which might result either from `blows or from heat, in case of fire.

In the modiiication illustrated in Fig. 9, the same flanged vertical plates A and flanged cross-plates A1 are employed 5 and the same -interior connecting members A2 are employed. A different method of connecting the edge-plates of the door is em loyed, however. According to this modi cation, the plates A and A1 are provided at the margins of the door with guide-members 20, and channel-bar ed e-members A", equipped with guides 21 a apted to engage the guides 20, are employed as binding members. The guide members-20 may be formed by partially severing aportion of the metal of the plate and stamping it into angle form to form the guide. The guides 21 are formed to interlock with and inclose the guide-members 20.

ln the modilication illustrated in Fig. 10,

A the door structure is the same as the con esv structions previously described, except that the spaces 9 between the lates are filled with a refractory or non-con ucting material 22. Any suitable material may be'used for the purpose, such, for instance, as asbestos, lire-clay or cement.

ln the modification shown in Fig. 11, the

construction is similar to the constructions previously described, except that the anges of the metal stri s or plates are somewhat differenti formed, and the connecting clips are slight y changed to conform to the change inthe anges. Lllhis construction comprises vertical plates A", crosslates A1o and connecting members A11. e plates or metal strips are provided with inturned flanges 23 which areat righty angles to thebodies of the 'latea and which, in turn, carry inturned anges 24 lying in a plane parallel with the erases plane of the bodies of the plates. The )lates are placed side by side with adjacent anges 23 in contact with each other and adjacent flanges 24 turned away from each other. Thus, the adjacent llanges of two plates virtually form a T-llange; and the arms or members of the clips A11 are bent to afford 'iT-slots which engage said IT-flanges, it being understood that. each member Al1 has a vertical T-slot and a transverse T-slot, whereby the flanges of the cross-strips will be con. nected with the flanges of the vertical strips at the points of intersection.

In each of the described constructions, the metal stripsare joined together by internal devices centaine in the spaces between the vertical strips and the cross-stri s, and the door presents practically plane lateral surfaces at the exterior.

Hinges may be connected with the door in any suitable manner, if desired. No hinges are shown, but it may be remarked that the edge-plates A are sulliciently strong for connection with butt hinges. lf desired, the door may, ofcourse, be employed as a sliding door.

It is obvious that the construction disclosed is adapted not only to door construetion but to wall construction generally, such as partitions, ceilings, etc. lt is noteworthy that the flanges of the metal strips serve to lend rigidity and strength to the strips; and the crosswise relation of the two series of strips serves to contribute to the door, in a remarkable degree, the qualities of rigidity, strength and durability.

The foregoing detailed description has been given for clearness of understanding only, and no undue limitation should be understood therefrom.

What l regard as new and desire to secure by Letters Patent, is-

1. In a construction of the character set forth, the combination of a series of )lates extending in one direction and equipped with adjacent flan es, a series of plates extendingcrosswise Wit relation to the first-name( plates and equipped with adjacent flanges, the flanges of the second-named series of' pllnates bein turned toward the ilanges of the i st-name series of plates, and internal connecting members.

2. ln a construction of the character set forth, the combination of two series of flanged metal relation with t 1e flanges .o` the two series turned toward each other, and means connecting the langes of each series of plates together. y

3. In a construction of the character set forth, the combination of two series of anged metal lates arranged in crosswisc relation with t e tlanves of the two series turned toward each other, and means connecting the flanges of each series of plates lates arran ed in crosswisc of the character set forth, the combination of two series of flanged metal plates arranged yin crosswise relation, the flanges o f the .two'series being turned toward each other so as to space the bodies of the plates, and internal connectin members joining the plates together. 5. In a construction of the character set forth, the combination of two series of flanged plates arranged in crosswise relation,

the flanges of the two' series lofplates lying adjacent to and crossing each other, and. connecting members joining said flanges, each connecting member having flange-receiving. channels crossing .each other.

A 6. Inv a construction of the character set forth, the combination of two series of flanged metal lates arranged in a'crosswise relation with anges adjacent to each other, and connecting members at intersections of said flanges, .each connecting member havinga pair of flange-receiving channels crossing each other? V 7, In a construction of the character set forth, the lcombination 'of two series of flanged metal plates arranged in crosswise relation'with the flanges turned toward each other and spacin the seriesoiplates with relation to each ot er, said flanges lbeing complemental, whereby the adjacentfflan es of two adjacent plates afford a tenon, an connecting members'jjoining saidf flanges, each connecting member having flange-receiving vchannels extending crosswise with relation to each other. 4 A

8. In austructure of the character set forth, the combination of `two series of flanged plates arranged in crosswise relationy with anges lying adjacent to each other, internal connecting members joining said flanges, binding members foiI the structure, and edge' comprising two series of flangedplat connecting members connected with the flanges of said plates and with said binding members.

.9. A structure of the character set forth, comprising two series of flanged lates arranged in crosswise relation with anges adjacent to each other, 'binding plates for the structure, and connecting menibers,-eacli having flaIiUe-receivinglchannels arranged iii crosswise relation and aving a member connected with one -of said binding plates.

10. A structure of the character set forth,

' comprising two series of flanged plates'with flanges turned toward and crossing each other, connecting members joined to certain of said flan es and extending to the edge portions of t e structure, andy "channel-forni binding -ilates embracin -the marginal portions of t e structure an joined to said connecting members.

11. A structure ofthe character set forth,

es arranged in crosswise relation with anges adjacent to and crossing each other, intermediate connecting members joining the flanges of said plates, corner connecting members each provided with flange-receiving channels extendinor crosswise with relation to each other an carryin members adapted for connection with two inding '(plates, and binding plates connected with sai last-named meniers. 4 l

y12 AV structure of the character set forth, comprising two series of flanged metal plates arranged in crosswise relation`and having their flan es turned toward each other, means rigi ly connecting said plates together, and refractory material contained in the spaces between said' plates.

. ALBLRT D. CAYWOOI). In presence of.

A. U. THORIEN, R., A. SCHAEFER. 

